Auto-login McMaster Account for Mac Websites

Auto-login.js

var username = "REPLACE WITH YOUR USERNAME";
var password = "REPLACE WITH YOUR PASSWORD";
var email = "REPLACE WITH YOUR MAC EMAIL";
// ==UserScript==
// @name         Auto-login McMaster Account for Mac Websites
// @namespace    https://greasyfork.org/en/scripts/403133
// @version      1.1
// @description  Auto-login to McMaster Websites
// @author       Gavinnn Zhang 北稱
// @include      https://avenue.mcmaster.ca/?target=*
// @include      https://www.oscarplusmcmaster.ca/notLoggedIn*
// @match        https://www.childsmath.ca/childsa/forms/main_login.php
// @include      https://login.echo360.ca/login?*
// @include      https://epprd.mcmaster.ca/psp/prepprd/?cmd=login*
// @match        https://loncapa.mcmaster.ca/adm/menu
// @include      https://cap.mcmaster.ca/mcauth/login.jsp?*
// @include      https://sso.mcmaster.ca/idp/profile/SAML2/Redirect/SSO?execution=*
// @include      https://sso.mcmaster.ca/shibboleth-idp/profile/SAML2/Redirect/SSO?execution=*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    var url=window.location.href;

    // test which web is opened and click login - a2l
    if(url.indexOf("https://avenue.mcmaster.ca/?target=") > -1)
    {document.getElementById("login_button").click();}

    // test which web is opened and click login - childmath
    if(url.indexOf("https://www.childsmath.ca/childsa/forms/main_login.php?") > -1)
    {document.getElementById("submit").click();}

    // test which web is opened and click login - echo 360
    if(url.indexOf("https://login.echo360.ca/login?") > -1)
    {document.getElementById("email").value=email;
     document.getElementById("submitBtn").click();}

    // test which web is opened and click login - Mosaic
    if(url.indexOf("https://epprd.mcmaster.ca/psp/prepprd/?cmd=login") > -1)
    {document.getElementById("userid").value=username;
     document.getElementById("pwd").value=password;
     document.getElementsByClassName("ps-button")[0].click();}

    // test which web is opened and click login - LON-CAPA
    if(url.indexOf("https://loncapa.mcmaster.ca/adm/menu") > -1)
    {document.getElementById("uname").value=username;

     var intput1 = document.getElementsByTagName('input');
     for(var i=0;i<intput1.length;i++)
     {if(intput1[i].type.toUpperCase()=='PASSWORD')
      {intput1[i].value = password;}}

     var intput2 = document.getElementsByTagName('input');
     for(var j=0;j<intput2.length;j++)
     {if(intput2[j].type.toUpperCase()=='SUBMIT')
     {intput2[j].click();}}}

    // test which web is opened and click login - OSCAR plus
    if(url.indexOf("https://www.oscarplusmcmaster.ca/notLoggedIn") > -1)
    {var intput3 = document.getElementsByTagName('a');
     for(var k=0;k<intput3.length;k++)
     {if(intput3[k].text =='Student/Alumni Login')
     {intput3[k].click();}}}

    // BUGGGGGGGGGGGGGGGGGG HERE with one entry - not affect performance, fix it later
    // auto fill and login entry 1
    if(url.indexOf("https://cap.mcmaster.ca/mcauth/login.jsp?") > -1)
    {
        if (username !== undefined)
        {
            document.getElementById("user_id").value = username;
            document.getElementById("pin").value = password;
            document.getElementsByClassName("btn btn-primary btn-arrow")[0].click();
        }
    }

    // auto fill and login entry 2
    if(url.indexOf(url.indexOf("https://sso.mcmaster.ca/idp/profile/SAML2/Redirect/SSO?execution=") > -1 ))
    {
        if (username !== undefined)
        {
            document.getElementById("username").value = username;
            document.getElementById("password").value = password;
            document.getElementsByClassName("btn btn-primary btn-arrow")[0].click();
        }
    }

    // auto fill and login entry 3
    if(url.indexOf(url.indexOf("https://sso.mcmaster.ca/shibboleth-idp/profile/SAML2/Redirect/SSO?execution=") > -1 ))
    {
        if (username !== undefined)
        {
            document.getElementById("username").value = username;
            document.getElementById("password").value = password;
            document.getElementsByClassName("btn btn-primary btn-arrow")[0].click();
        }
    }
})();